Strikingly is a YC-funded company based in Shanghai. We sponsor visa. Typically, a person with 2 years of working experience can get work visa issued in few weeks.

We are hiring people in engineering, sales and marketing departments https://www.strikingly.com/s/careers

There are tons of foreigners in Beijing, Shanghai, Guangzhou and Shenzhen so there must be some ways to get into the country (and work there).

A few years back a friend told me work permit was easy to get as long as you got a sponsor. Not sure how hard it is today though.